500W 2-Zone Network Amplifier -Supports real-time and scheduled tasks, resume play, and audio material library management -Support alarm input, arming schedule, and audio linkage, support TTS speech synthesis and text broadcasting, with natural and smooth standard male and female dual audio options -Support multiple types of audio source input: Bluetooth, USB flash drive, microphone, and RCA, with flexible and convenient operation -Independent microphone volume control, 2-channel partition volume control -Support 2-channel audio mixing output -Support ISUP, EZVIZ Cloud and ISAPI protocol -Adopt high-strength engineering plastics, sturdy and durable -Integrated functional design, convenient and reliable